Rotary engine



(No Model.) I

' H. S. DAGGETT.

y ROTARY ENGINE. l

No. 591,32' Patented Oct. 5,1897.

/Maff NTTED STAT-ES HEEY SMITH DAGGETT, OE PUEBLO, COLORADO.

ROTARYv ENGINE.

SPECIFICATIONl forming part of Letters lPatent No. 591,328, dated October 5, 1897.

Application filed March 2 7, 1 8 9 6.

Serial No. 585,139. (No model.)

To all whom it may concern:

Be it known that I, HENRY SMITH DAGGETT, of Pueblo, county of Pueblo, and State of Colorado, have invented certain new and useful Improvements in Reversible Rotary Engines; and I do hereby declare the following to be a full, clear, and exact description of the in-V vention, such as will enable others skilled in the art to which 'it appertains to make and use it, reference being had to the accompanying drawings, which form part of this specification.

My invention relates to an improvement in rotary engines; and it consists in certain novel features of construction and in the combination and arrangement of parts, which will be fully described hereinafter and particularly referred to in the claims. Y

The object of my invention lis to produce an im proved reversible rotary engine in which steam, gas, or compressed' air can be applied with a constant flow and pressure on aset of buckets, and can be reversed atwill, with the propelling iiuid so coniined as to "gain thev highest efficiency.V

In the accompanying drawings, Figure l is a vertical longitudinal sectional View, one side of the piston being illustrated in solid lines and the opposite side in dotted lines. Fig. 2 is a vertical transverse sectional view through the center of the engine. Fig. 3 is a vertical transverse sectional View of the piston. Fig. 4 is a plan view. i y

Adesignates the cylindrical casing, formed with perforated lugs, and B are the opposite cylinder heads, having perforated lugs alining with the cylinder-lugs and through which bolts j extend, and thus the cylinder parts are united in a most secure manner. Piston O is journaled centrally in the cylinder'and is formed with the two outside pe-Yl ripheral flanges o and the central flange c', the three flanges having the same contour and fitting snugly Within the cylinder in which the piston rotates. Between -the respective outside flanges c and inside central flange c the periphery of the piston is formed with oppositely-disposed notches or steps to form the two series of buckets F F', the impact of the propelling fluid upon the' respective series serving to rotate the pist-on in reverse dilections. Inlet-pipes D enter diametrically opposite sides of casing A and pass the steam, gas, or compressed air, as the case maybe, to the buckets'F. Oppositely-'arran ged pipes D' perform the'same service for bucketsF. The respective pipes enter the casing in straight lines, so that the passage of the propelling iiuid to the buckets is unobstructed, and the several pipes are arrangedat such angles as to aline with the long inner sides f of the buckets as they pass in succession the inlet .quarter-rotation only of the latter when it exhausts. The frequent and rapid exhaust,

combined with the double inlet for each sei ries of buckets, render the engine capable of high speed and great power.

The abutmentsf of the buckets may be provided with attachable platesG, whereby the abutments are relieved of the wear incident to the direct impact of the fluid, the plates being so applied as to be readily removable when worn, so that others may be substituted.

The machinery or mechanism to be yactuated may be connected in any suitable manner (not shown) to the central axial shaft K.

The engine is provided with asuitable base, which is secured by bolts I to a proper foundation.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is-

l. An improved reversible rotary engine, comprising a piston centrally divided by a peripheral flange, a continuous series of buckets on each side of the flange, the buckets of one series arranged opposite to those of the other series, a casing in which the piston fits steamtight and in which it is adapted to rotate, .the flange of the piston dividing the casing into Exhaust-ports E are formed on optwo compartments, the inner wall of the casing being formed with exhaust depressions or cavities extending across the line of the central flange of the piston, whereby both series of buckets are common to and adapted to exhaust in said depressions, and two inlet-ports for each series of buckets, two of the ports-one for each series*being arranged to simultaneously admit steam for rotating the piston in one direction, the other two ports similarly eoactin g to actuate the piston in opposite direction, substantially as shown and described.

2. An improved reversible rotary engine, comprising a piston formed with three peripheral flanges, a casing in which the piston its and is adapted to rotate, the central of the three piston-flanges dividing the casing into two separate compartments, the inner wall of the casing being formed on each side with a depression traversing the line of the central flange and into which eaeh of the casing-coinpartments is adapted to exhaust, oppositelyarranged series of buckets between the respective outer flanges and the central flange of the piston, and two steam-inlet portson each side of the casing, the ports of each side being arranged respectively above and below the exhaust-depressions, said two ports entering separate casingcompartments and adapted to discharge steam against the abutments of the buckets, whereby in rotating the piston in one direction steam will be admitted in the upper inlet-port on one side of the casing and the lower port on the opposite sido, and vice versa for a reverse movement, the inlet-ports being arranged in lines substantially at right angles to the exhaust-depressions, whereby the steam acts on the buckets during a quarter-revolution of the piston before exhausting, substantially as shown and described.

HENRY SMITH DAGGETT. Witnesses:

L. A. CRANE, S. J. NOYER. 

